Method ramp

src/extended/PolyBLEPNode.cpp:300–309

    }

    double ramp() const
    {
        double _t = t;
        _t -= bitwise_or_zero(_t);

        double y = 1 - 2 * _t;
        y += blep(_t, freqInSecondsPerSample);

        return amplitude * y;
    }

    PolyBLEPType type;